Err CF then Err 99 - Canon Rebel XT / Hitachi 4GB Mircodrive
Not all CF cards are created equally, so yes, it could be your batch of cards. To determine if the error is CF related, and not anything else, try the following steps which are used to diagnose err 99's
To isolate the cause of the issue, do the following: -
1. Turn off the camera.
2. Remove the lens, battery, and CF card.
3. Allow the camera to sit without power for approximately 20 minutes.
4. Insert only a fully charged battery, and turn on the camera.
5. Depress the shutter button as you would to take a picture.
Does the “ERR 99′ message appear? If so, the camera may be faulty and requires a service. If it does not, then: -
1. Turn off the camera.
2. Insert the CF card.
3. Turn on the camera.
4. Format the CF card in the camera.
5. Depress the shutter button as you would to take a picture.
Does the “ERR 99′ message appear? If so, then the CF card is faulty. Try a different card. If the message does not appear: -
1. Turn off the camera.
2. Clean the gold contacts on the lens by
GENTLY rubbing them with a pencil eraser or soft cloth. Keeping the
camera face pointing down, also clean the gold contacts on the camera,
being careful that you do not let any debris fall into the camera body.
3. Reattach your lens.
4. Turn on the camera.
5. Depress the shutter button as you would to take a picture.
If the “ERR 99′ message only appears when one particular lens is attached, then that lens should be examined by a service technician.
If you see the “ERR 99′ with a different Canon lens attached, then the camera is faulty and should be serviced.
Please note that formatting a CF card erases all data, including protected images and other file types. Please check the contents of the CF card before formatting it.
(Set up)] using 
or 
.
(Format) using 
or 
and press the <SET> button.
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